初至时间反演静校正技术的发展趋势及实践效果

随着勘探区域近地表结构复杂程度地增加，以往那些在油气勘探中发挥了重要作用的单一静校正方法，越来越难以适应现今勘探对资料构造形态和成像品质的要求。因此通过尽可能多的表层资料信息，分层系、分阶段，有针对性地应用不同方法建立综合表层模型，是静校正技术发展的新趋势。经泉1井三维的实践证明，以表层资料解释及可视化模型时时关联互动为基础，从简单到复杂、逐级迭代相互约束的综合应用新技术，能有效反演并校正复杂构造区浅地表结构。不仅能提高地震资料成像的精度，改善构造形态，还能在一定程度上避免野外微测井采集数量的过度增加，减少勘探费用。

The new trend and application effect of first arrival inversion static correction

In complex weathering areas,single static correction method is becoming harder to have good image and right structure,although those technologies ever played important roles.Accurate near-surface model base on integrated solution for visualization model and near-surface information interpretation is the new trend of static correction technology.It succeeds in Quan 1 area.The new techniques include different technologies applied to different layers and cases,integrated solution for visualization model and near-surface information applied as much as possible,and step by step iteration and mutual restriction.This method can not only improve seismic imaging accuracy and structure features,but also avoid excessive increase of drilling holes.